Bellow Seal Gate Valve

Forged Bellow Seal Gate Valve, socket weld ends acc. to ASME B 16.11 (Optional:butt weld end acc. to ASME B 16.25/ screwed end acc. to B 1.20.1), end to end as per manufacturers std. and with ACME stem screw thread and grounded shaft. Multiply bellow with long service life made of stainless steel. Min. life cycle of Bellow tested for 10,000 cycles, metal back seat, safety stuffing box packing made of pure graphite/PTFE.


Size                                   :   NPS 1/2 – 2 (DN 15 – 50)

Rating                             :   ASME Classes 150 – 1500

Working Pressure   :   800PSI & 1500PSI 

Material                         :   Carbon Steel, Stainless steel

Temperature               :   38°C  – 538°C / 100°C  – 1000°C

End                                   :   Threaded, Socket weld, Flanged

Manufacturer            :   VELAN, Other Request

» Bellows monitoring port (optional): A plug can beconnected with the space above the bellows to monitor performance

» Long cycle life bellows (3000 cycles)

» Two secondary stem seals: Backseat in open position and Graphite packing

» Superior seating faces: Seats CoCr alloy hardfaced and wedge is solid CoCr alloy